⚛️ Category

nucl-ex

677 papers

Nucl-Ex represents the dynamic frontier where scientists probe the fundamental building blocks of matter through high-energy experiments. By smashing particles together at incredible speeds or observing rare cosmic events, researchers uncover the forces that govern our universe and test the limits of our current understanding of physics.

At Gist.Science, we ensure these breakthroughs reach a broader audience by processing every new preprint in this field directly from arXiv. For each study, we provide both a clear, plain-language explanation of the core discoveries and a detailed technical summary for those seeking deeper insights. Below are the latest papers in nuclear experiment research, curated to help you stay informed on the latest developments from the lab.

⚛️ nuclear theory

Anisotropic flows in Au+Au collisions at sNN=2.4 GeV\sqrt{s_{\rm{NN}}} = 2.4\,\text{GeV} with a Skyrme pseudopotential

Using a lattice Boltzmann-Uehling-Uhlenbeck transport model with a density-, momentum-, and isospin-dependent N5^5LO Skyrme pseudopotential, this study analyzes proton anisotropic flows in Au+Au collisions at sNN=2.4 GeV\sqrt{s_{\rm{NN}}} = 2.4\,\text{GeV} to demonstrate their strong sensitivity to momentum-dependent mean-field potentials and the symmetric nuclear matter incompressibility, while highlighting the need to incorporate higher-order equation-of-state parameters and in-medium cross-section modifications for future Bayesian extractions of nuclear matter properties.

Xin Li, Si-Pei Wang, Rui Wang, Zhen Zhang, Jie Pu, Chun-Wang Ma, Lie-Wen Chen2026-02-20
⚛️ high-energy experiments

Dielectron production in proton-proton and proton-lead collisions at sNN\sqrt{s_{\rm{NN}}} = 5.02 TeV

This paper presents the first measurements of dielectron production in proton-proton and proton-lead collisions at sNN\sqrt{s_{\rm{NN}}} = 5.02 TeV using the ALICE detector, determining charm and beauty cross sections in pp collisions and finding that the pPb results are consistent with expectations without nuclear matter effects while providing the first direct comparison of these systems via the nuclear modification factor RpPbR_{\rm{pPb}}.

ALICE Collaboration2026-02-19
⚛️ nuclear experiments

Measurement of ψ(2S)ψ(2S) to J/ψJ/ψ cross-section ratio as function of multiplicity in ppPb collisions atsNN=8.16\sqrt{s_{NN}} = 8.16 TeV

Using LHCb data from ppPb and Pbpp collisions at sNN=8.16\sqrt{s_{NN}} = 8.16 TeV, this study measures the ψ(2S)\psi(2S) to J/ψJ/\psi production ratio as a function of multiplicity, revealing a multiplicity-dependent suppression for prompt charmonia in the Pb-going direction that suggests the presence of additional mechanisms, potentially related to quark-gluon plasma formation, beyond standard comover effects.

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén, T. Ackernley, A. A. Adefisoye, B. A (…)2026-02-19
⚛️ nuclear experiments

Σ‾±\overlineΣ^{\pm} production in pp and p-Pb collisions at sNN\sqrt{s_{\rm NN}} = 5.02 TeV with ALICE

The ALICE experiment measured the transverse momentum spectra and integrated yields of anti-Σ\Sigma hyperons in pp and p-Pb collisions at sNN=5.02\sqrt{s_{\mathrm{NN}}}=5.02 TeV using a novel antineutron reconstruction method, finding that while multiparton-interaction models best describe the high-pTp_{\rm T} spectra, all tested models reproduce the total yields and nuclear modification factors within uncertainties.

ALICE Collaboration2026-02-19
⚛️ nuclear experiments

Σ+Σ^{+} production in pp collisions at s=13\sqrt{s} = 13 TeV

This paper presents the first measurement of Σ+\Sigma^{+} production in minimum-bias and high-multiplicity pp collisions at s=13\sqrt{s} = 13 TeV using a novel reconstruction method that combines converted and calorimeter photons, providing transverse-momentum spectra and ratios that agree with theoretical models and enabling future femtoscopic studies relevant to neutron star physics.

ALICE Collaboration2026-02-19